Suddenly my settings in Firefox and IE was set to use Proxy. Security hole or virus?
When I turned off my laptop everything worked fine. When I turned it on again. It was not possible to connect to any website as the settings in both Firefox and IE was changed to use a proxy server. IP 127.0.0.1. Security hole or virus? Or maybe could I possibly, changed the settings by accident?
Solução escolhida
It's hard to accidentally change the setting of something you normally don't access. I say add/mal-ware.
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You can check in "Windows Control Panel > Programs" for recently installed programs to see if any suspicious software shows up.
- Control Panel > Programs > Programs and Features > Uninstall or change a program
- Click the Installed column to sort by this heading
Do a malware check with several malware scanning programs on the Windows computer. Please scan with all programs because each program detects different malware. All these programs have free versions.
Make sure that you update each program to get the latest version of their databases before doing a scan.
- Malwarebytes' Anti-Malware:
http://www.malwarebytes.org/mbam.php - AdwCleaner:
http://www.bleepingcomputer.com/download/adwcleaner/
http://www.softpedia.com/get/Antivirus/Removal-Tools/AdwCleaner.shtml - SuperAntispyware:
http://www.superantispyware.com/ - Microsoft Safety Scanner:
http://www.microsoft.com/security/scanner/en-us/default.aspx - Windows Defender:
http://windows.microsoft.com/en-us/windows/using-defender - Spybot Search & Destroy:
http://www.safer-networking.org/en/index.html - Kasperky Free Security Scan:
http://www.kaspersky.com/security-scan
You can also do a check for a rootkit infection with TDSSKiller.
- Anti-rootkit utility TDSSKiller:
http://support.kaspersky.com/5350?el=88446
See also:
Solução escolhida
It's hard to accidentally change the setting of something you normally don't access. I say add/mal-ware.